For example, the way cashiers entered the price of products into the terminal and logistics systems changed drastically with the invention of bar codes and scanners.

例如，出纳员将产品的价格输入终端机和后台系统的方法就是一种由于条形码和扫描仪的发明而带来的新方法。

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Forbes and other magazines give readers scanners for bar codes on ads, deriving data on who reads what.

FORBES: The Killer Ad Machine